The correct answer is: A. As separately wound unit.
A conductively compensated DC series motor is a type of DC motor that uses a compensating winding to reduce the armature reaction. The compensating winding is a separate winding that is placed in parallel with the armature winding. The compensating winding helps to reduce the armature reaction by providing a magnetic field that opposes the field produced by the armature current. This helps to improve the motor’s efficiency and power factor.
The other options are incorrect because:
- Option B: The compensating winding is not placed in parallel with the armature winding.
- Option C: The compensating winding is not placed in series with the armature winding.
- Option D: The compensating winding is not placed in parallel with the field winding.
I hope this helps! Let me know if you have any other questions.